Fix CI on main: SwiftLint 0.65.1 line length and aria2 stderr race - #824
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Fix CI on main: SwiftLint 0.65.1 line length and aria2 stderr race#824akramj13 wants to merge 2 commits into
akramj13 wants to merge 2 commits into
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Two main-branch failures surfaced on every open PR once the macos-latest image moved from SwiftLint 0.65.0 to 0.65.1. SwiftLint 0.65.1 fixed `ignores_urls` so that property accesses whose member names are valid top-level domains (`.app`, `.info`) no longer make a line count as a URL. That exposed the 144-character launch log line in AppDelegate, which 0.65.0 had silently skipped. Wrap it. Aria2DownloadService read its stderr buffer inside the termination handler while the readability handler, which runs on its own queue, could still be holding the process's final write. On the slower runner the buffer was empty and the error degraded to "Process terminated with exit code 7", failing test_downloadSurfacesProcessExitAndStderr. Drain both pipes to EOF in the termination handler before building the result; that cannot block because the child's write ends closed with it. The parsing is shared between the handlers and the drain so bytes are treated the same either way. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Included review availability: Your plan provides up to 4 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe changes reformat the application launch log call and update aria2 process handling. The download service now shares pipe-consumption logic and drains both pipes before completion. ChangesLaunch logging
Download process output handling
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to This updates launch-log formatting and preserves final aria2 output at process termination. No current merge-blocking risk is identified. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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In `@Cotabby/Services/ModelManagement/Aria2DownloadService.swift`:
- Around line 122-123: Update the termination cleanup around the readability
handlers and final pipe drain to serialize reads per pipe, ensuring any active
consumeError callback finishes before draining and reading errorBuffer.value.
Use the existing LockedTextBuffer/pipe handling symbols and preserve the final
error collection behavior.
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Cotabby/App/Core/AppDelegate.swiftCotabby/Services/ModelManagement/Aria2DownloadService.swift
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Detaching a readability handler does not wait for a callback that is already running, so one could have pulled the final stderr bytes with availableData and not yet appended them when the termination handler drained the pipe and read the buffer. Run every pipe read, callbacks and drain alike, on one serial queue and snapshot the message on that same queue: an in-flight callback finishes appending before the drain starts, and a late callback finds the pipe at EOF. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Summary
Two failures on
mainnow hit every open PR, including #814, because the macos-latest image moved from SwiftLint 0.65.0 to 0.65.1. SwiftLint 0.65.1 fixedignores_urlsso member names that are valid top-level domains (.app,.info) no longer make a line count as a URL; that exposed the 144-character launch log line inAppDelegate, which 0.65.0 had silently skipped. Separately,Aria2DownloadServiceread its stderr buffer in the termination handler while the readability handler, on its own queue, could still hold the process's final write; on the slower runner the message degraded to "Process terminated with exit code 7" andtest_downloadSurfacesProcessExitAndStderrfailed. The log line is wrapped, and both pipes are now drained to EOF in the termination handler through the same parsing the handlers use.Validation
The race never reproduces locally (40/40 before the fix as well), so the CI run on this PR is the real check. Draining cannot block: the child's write ends close when it exits and the parent's copies were closed at launch.
Second commit, after the bot reviews: every pipe read, readability callbacks and the drain alike, now runs on one serial queue and the message is snapshotted on that queue, so a callback that already pulled the final bytes finishes appending them before the drain, and a late callback finds EOF. Suite 11/11 and 40/40 stress again.
Linked issues
Unblocks #814 (its Lint and Tests checks fail on these two
mainissues, not on its own changes).Risk / rollout notes
🤖 Generated with Claude Code
Summary by CodeRabbit
Bug Fixes
Maintenance
Greptile Summary
The PR restores CI stability by wrapping an AppDelegate launch log below SwiftLint’s line-length limit and making aria2 stdout/stderr consumption deterministic.
Confidence Score: 5/5
The PR appears safe to merge; the latest synchronization change fully addresses the previously reported stderr race without introducing a new actionable defect.
The serial pipe-read queue ensures an in-flight readability callback finishes consuming and appending its bytes before termination drains to EOF and snapshots stderr. The prior finding was manually resolved without an explanatory reply, and the current implementation independently confirms that its race is fixed.
Important Files Changed
Sequence Diagram
sequenceDiagram participant P as aria2 Process participant H as Pipe Readability Handler participant Q as Serial Pipe Read Queue participant T as Termination Handler participant C as Continuation P->>H: stdout/stderr bytes available H->>Q: sync consume availableData Q-->>H: bytes parsed/appended P->>T: process terminates T->>T: detach readability handlers T->>Q: sync drain both pipes to EOF Q->>Q: parse remaining output Q->>Q: snapshot stderr Q-->>T: final error message T->>C: resume with completion resultReviews (2): Last reviewed commit: "Serialize aria2 pipe reads with the term..." | Re-trigger Greptile
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